How about Global Thermonuclear War?
DEFCON, a game of strategy and Global Thermonuclear War, is available for the next 7 days for only $4.99.
Shall we play a game? In the middle of the Cold War era, the world as we know it was one press of a button away from total ruin. Now you get to press that button. What is the primary goal? To win the game. In DEFCON you compete as 1 of 6 superpowers caught up in the ultimate military conflict. It’s the beginning of the end of the world. "Defcon." That indicates our current defense condition. It should read "Defcon 5," which means peace. Position your bases, naval fleets, including battleships and aircraft carriers, air bases, radar dishes, and, of course, nuclear silos. The clock of doom is ticking and slowly counts down from Defcon 5 to Defcon 1. Scramble the bombers, get the subs in launch mode. We are at Defcon 1.
DEFCON is really simple to learn but the immense strategic depth and endless possibilities (but only one final outcome;)) make it extremely interesting and entertaining. Arranging defences, making and breaking alliances, mobilizing your forces, and finally unleashing the final strike is incredibly fun yet unbearably tense, especially in the Office Mode--easy to play with coworkers (including co-op!) and equipped with a Panic Button to keep it safe from prying eyes.
If you loved War Games, you will definitely play DEFCON and condemn billions of innocent civilians in the process, for only $9.99.
Visit the Summer Indie Drop promo page to get DEFCON, Uplink, Gemini Rue, and Multiwinia for 50% off until Thursday, July 19 at 06:59 PM EDT.